Isochoric thermal conductivity of solid nitrogen

被引：7
|
作者：
Konstantinov, VA [1 ]
Manzhelii, VG [1 ]
Revyakin, VP [1 ]
Sagan, VV [1 ]
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2005年 / 31卷 / 05期
关键词：
D O I：
10.1063/1.1925369
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The isochoric thermal conductivity of solid nitrogen is investigated on four samples of different densities in the temperature interval from 20 K to the onset of melting. In alpha-N-2 file isochoric thermal conductivity exhibits a dependence weaker than Lambda proportional to 1/T; in beta-N-2 it increases slightly with temperature. The experimental results are discussed within a model in which the heat is transported by low-frequency phonons or by "diffusive" modes above the mobility edge. The growth of the thermal conductivity in beta-N-2 is attributed to (lie decreasing "rotational" component of the total thermal resistance, which occurs as the rotational correlations between the neighboring molecules become weaker. (C) 2005 American Institute of Physics.
引用
收藏
页码：419 / 422
页数：4
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